Season 3 of Railgun i say will happen. the railgun sports festival arc is one of the most poplar arc in all of the certain universe. Especially because two of the other level 5 have major rolls in the manga. Also its going to be the 1st appearance on one of them.

I'm really hoping that since 2018 is supposed to be like, a "Year of ToAru", it'll end up running for all 4 cours, or maybe the latter 3. There is still TONS of material in the series that needs to be covered. I just really hope we get to the time where Accelerator goes Angel mode again, because he is a BEAST then from what I've heard. Can't wait!

Also, more Railgun would always be nice. Would be a little hard to pull off with how they did an anime-original story that interferes with the timeline, but hey, if they can, I'll always take more Kuroko

I'm really hoping that since 2018 is supposed to be like, a "Year of ToAru", it'll end up running for all 4 cours, or maybe the latter 3. There is still TONS of material in the series that needs to be covered. I just really hope we get to the time where Accelerator goes Angel mode again, because he is a BEAST then from what I've heard. Can't wait!

According to their news, they have other big projects related to the Index/Railgun franchise too for 2018.